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KCET2010MathematicsTrigonometric Ratios & Identities

( + )( + ) is equal to

Options

  1. A1
  2. B+ cosec
  3. Ccosec

Correct answer

C. cosec

Step-by-step solution

aligned ( +& )( + ) &=( + ) [ + ] &=( + ) ( ² + ² ) &= ( + ) = 1 + 1 &= + cosec aligned

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